CVE-2026-84694
Coolify before 4.2.0 Remote Code Execution via Environment Variable Key
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 2, 2026
- Updated
- Sep 2, 2026
- Reserved
- Sep 1, 2026
Description
Coolify before 4.2.0 fails to properly escape environment variable key names in Docker commands executed over SSH on managed servers. Authenticated attackers can inject shell metacharacters into environment variable keys to execute arbitrary commands on the server host outside containers.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
| Product | Versions |
|---|---|
coolifycoollabsio |
|
References
- https://github.com/coollabsio/coolifyproduct
- Patch Commitpatch
- https://github.com/coollabsio/coolify/blob/v4.1.2/app/Support/ValidationPatterns.phptechnical-description
- https://github.com/coollabsio/coolify/blob/v4.1.2/app/Policies/ApplicationPolicy.phptechnical-description
- Coolify v4.2.0 Release Notesrelease-notes
- VulnCheck Advisory: Coolify before 4.2.0 Remote Code Execution via Environment Variable Keythird-party-advisory
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